视网膜检影器

例句：

1. 1.The ophthalmologist used a retinal examination to diagnose the patient's condition.
   眼科医生使用视网膜检查来诊断病人的状况。
2. 2. During the exam, the doctor carefully examined the patient's retina.
   在检查过程中，医生仔细检查了患者的视网膜。
3. 3. The retinal scanner was used to detect any abnormalities in the patient's vision.
   视网膜扫描仪被用来检测患者视力的任何异常。